Car-truck.



W. s. ADAMS.

GAR TRUCK.

APPLICATION FILED 00T.23, 1913.

Patented Mar. 24,1914

4 SHEETSSHEET 1.

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OAR TRUCK. APPLICATION FILED 001223, 1913.

1,091,107, v Patented Mar. 24, 191i 4 SHEETS-SHEET 2.

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W. S. ADAMS.

GAR TRUCK.

APPLICATION FILED 0012s, 1913.

Patented Mar. 24, 1914.

4 SHEETS-SHEET 3.

W. S. ADAMS.

GAB. TRUCK.

APPLICATION FILED 0012.23, 1913.

Patented Mar. 24, 1914 4 SHEETS-SHEET 4.

1 amen/ 3oz Qdms UNITED STATES PATENT OFFICE.

WALTER S. ADAMS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOB TO THE J. G. BRILL 00., OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYL- VANIA.

CAR-TRUCK.

To all whom it may concern: Be it known that I, WALTER S. ADAMS, a citizen of the United States, and a resident of the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Oar-Trucks, of which the following is a specification.

The object of my invention is to provide a truck with a rigid frame and axle boxes mounted therein in the conventional manner, and on these. axle boxes are carried two equalizing bars which are straight throughout, an upper equalizing bar carried outside the frame and a lower equalizing bar carried inside the frame, these two equalizing bars and the frame being connected by coiled springs and caps and links.

A further object of my invention is to preserve the axle boxes in a vertical position and to prevent the vertical faces of the boxes and the side frame yokes from wearing faster at the top than at the bottom, or vice versa.

A further object is to keep the axle boxes a constant distance apart and so preserve the original wheel base of the truck after wear in the pedestals has occurred.

Yet another object is to provide means for preventing an excessive swinging of the bolster. I

These, and other objects, are accomplished by my invention, one embodiment of which is hereinafter set forth.

For a more particular description of my invention, reference is to be had to the accompanying drawings, forming a part hereof, in which:

Figure 1 is a side elevation of a part of my improved truck, the parts not shown corresponding to what is shown; Fig. 2 is a sectional view, taken on the line 22 of Fig. 1, looking in the direction of the arrows;

Figs. 3 and 4 are side and end views respectively of a U bolt from which the lower equalizing bar is supported; Fig. 5 is a sectional view, taken-on the line 55 of Fig. 1, looking in the direction of the arrows; Fig. 6 is a plan view of the structure shown in Fig. '1; Figs. 7, 8 and 9 show a spring seat, Fig. 8 being a sectional view taken on the line 88 of Fig. 7 looking in the direction of the arrows, and Fig. 9 being half a sec tion and half an end view on line 99 of,

Specification of Letters Patent.

Application filed October 23, 1913.

preferably Patented Mar. 24, 1914. Serial No. 796,771.

r Fig. 7, looking in the direction of the arrows; Figs. 10, 11 and 12 show a spring seat, F lgs. 11 and 12 being half end views and half sectional views taken on the lines 11 11 and 12-12 respectively of Fig. 10, looking in the direction of the arrows; Fig. 13 1s a view, partially in section, of a portion of the truck as viewed from a side; and Fig. 1 1 shows the upper part of an axle box and the parts connected therewith.

Throughout the various views of the drawings, similar reference characters designate similar parts.

My improved truck 1 is provided with the conventional axles 2 carrying wheels 3 and these axles also carry the usual axle boxes 4, each of which has a vertical movement in a pedestal 1 of the frame 5. This frame 5 is composed of the side frames 6, the transoms 40, the crossings 7, and other incidental parts, all of which may be of any suitable design.

The side frames 6 are carried from the axle boxes 4 by a structure which will now be described.

Each axle box near the outer edge of its upper surfaces is provided with a suitable lug 8 which has a cylindrical upper seat and on this seat is mounted a suitable saddle 9 which is fixed to the straight upper equaliz- 1 ing bar 10 by rivets, bolts, or other suitable means, so that each equalizin bar 10 is supported at each end by a sa dle 9 and a lug 8. The lower equalizing bar 11, which is carried at the inner end of the axle boxes, has each end supported by means of a bolt 12 which passes through a suitable U bolt 13 which is suspended from ears 14: which are integral with the axle boxl, and the upper ends of this U bolt 13 are held in said lugs by means of suitable nuts 15. A recess is formed at the lower end of the U bolt 13 to receive this bolt 12. A coiled spring 16 on it presses the two bars 17 and 18 of which the straight equalizing bar 11 is composed, against each side of the U bolt. The two bars 17 and 18 are held fixed in proper relation by means of suitable spacing blocks 19 and rivets 20, or any other suitable means. By referring to Fig. 5, it is evident that these bars 17 and 18 also have the lugs 21 sandwiched in between them, and each lug extends from a spring seat 22 shown in detail in Figs. 7, 8 and 9. This seat 22 has a collar 23 about the disk 24 which carries the spring, and diametrically opposite the lug 21 and below the level of the disk 24 is a suitable shoulder 25 which is adapted to receive a supporting hook which will be described below. The disk 24 is further reinforced by suitable transverse ribs 26, and the collar 23 is connected to the lug 21 by means of integral lugs 27. The seat 22 carries a coiled spring 28, the upper end of which is'surmounted by a suitable spring cap 29, which is shown in detail in Figs. 10, 11 and 12. The disk of this cap is surmounted by suitable webs 31 which leave a channel 82 between them which is adapted to receive the top chord 33 of the frame 6, and the lower edge of the disk 30 is surrounded by the annular collar 34 of the conventional kind.

The shoulder 25 of the spring seat 22 engages a suitable hook 35 which rises vertically and parallel, or substantially parallel, to the axis of the spring 28 and is fixed to the upper equalizing bar 10 by means of a bolt 86 and a lug 37, or other suitable means. The cap 29 is fixed to the top chord 38 by bolts or screws or other suitable means, and the lug 21 may be clamped in any desired way between the bars 17 and 18.

It will be noted that the equalizing bars 10 and 11 are flexibly connected to the axle boxes and permit a limited movement for any inequalities in the roadbed or track when the truck is in use, all of which tends to make an easy riding truck. It is also to be noted that these equalizing bars and their connections with the axle boxes make a parallel movement which keeps the axle boxes parallel at all times, even though the brakes are applied when the pedestals are worn and the thrust of the inside hung brakes will tend to stretch the equalizing bars instead of the side bars of the frame, and when there is lost motion between the axle boxes and pedestals and the brakes are applied, the rear axle boxes will come in contact with the rear faces of their pedestals and the front axle boxes will not touch the front faces of their pedestals.

The side frames 6 are each provided with suitable tie-bars 38 connecting the lower ends of the pedestals, and gusset plates 39 which join these frames to the transoms 40 from which the bolster 41 is supported from bearing blocks 42 on said transoms through links 43 and pivot pins 44 and link pins 45 which pass through coiled springs 46 which press these links 43 against blocks 47 fixed to the spring plank 48. The blocks 47 also carry suitable seats 49 for elliptic springs 50 on which the bolster is mounted in the conventional manner. The bolster 41 may be made in any suitable way and provided with suitable center and side bearings. The springs 46 prevent undue swinging of the links 43 by forcing them against the blocks 47.

From the foregoing, it is apparent that when my improved truck is in use, the load is carried by the wheels and from thence derived from the axles and from thence received from the axle boxes where it is received from the top equalizing bars 10 and the lower equalizing bars 11. These bars carry the springs 28 which receive the load from the side frame 6, which in turn reeeives the load through the spring plank and other parts from the bolster 41, which carries the car body in the conventional manner.

The equalizing bars are straight and flexibly mounted, as above set forth, and the entire structure is such that an easy riding, short wheeled base truck is produced with ample space for the motors and brakes.

While I have shown and described one embodiment of my invention, it obvious that it is not restricted thereto, but is broad enough to cover all structures which come within the scope of the annexed claims.

Having thus described my invention, what I claim is:

1. In a truck of the class described, a frame with axle boxes mounted to move therein, equalizing bars connecting said axle boxes, springs between said bars and the truck frame, means for suspending said springs from one of said equalizing bars. and means for supporting said springs from the other equalizing bar.

2. In a truck of the class described, a frame with axle boxes mounted therein, equalizing bars connecting said axle boxes, hooks suspended from one of said equalizing bars, spring seats supported by said hooks and said other equalizing bars, springs resting on said seats, caps resting on said springs and under said frame whereby said frame is supported from said axle boxes through said bars and springs.

3. In a truck of the class described, a frame, springs, strai ht equalizing bars, axle boxes and means for supporting said equalizing bars from said axle boxes, and at the top and bottom of them, springs, and means for supporting said springs from said equalizing bars whereby the frame is carried from said axle boxes.

4. In a truck of the class described, axle boxes, a truck frame with pedestals for guiding said axle boxes, an equalizing bar carried by two of said axle boxes on the exterior of said frame, and a second equalizing bar carried by said axle boxes on the interior of said frame, hooks carried by the exterior equalizing bar, seats carried by said hooks and said lower equalizing bar and springs on said seats adapted to support the frame.

5. In a truck of the class described, axle boxes, a frame with pedestals in which axle boxes are guided, exterior equalizing bars carried on top of said axle boxes, interior equalizing bars carried at the bottom of said axle boxes, springs for carrying the same from said equalizing bars, mechanism supporting said springs from said equalizing bars, and means connecting said springs with said frame, so that said frame is carried from said axle boxes.

6. In a truck of the class described, an axle box provided with a U bolt, an equalizing bar and a bolt connecting said U bolt with said equalizing bar.

7. In a truck of the class described, an axle box, a U bolt secured to said axle box, an equalizing bar, a bolt connected to said equalizing bar and U bolt, a spring on said connecting bolt.

8. In a truck of the class described, an axle box, a seat carried on said axlebox, a saddle resting on said seat, an equalizing bar secured to said saddle, a lower equalizing bar and means connectingthe same with said axle box, springs, and means connecting said springs with each of said equalizing bars whereby said equalizing bars jointly support said springs.

9. In a truck of the class described, a frame, axle boxes mounted to ride in said frame, equalizing bars connecting the tops and bottoms of said axle boxes, and springs suspended from one of said equalizing bars and supported by another of said equalizings bars, and means for connecting said springs with said frame.

10. In a truck of the class described, a frame, axle boxes mounted to ride in said frame, equalizing bars mounted at the tops and bottoms of said axle boxes and means said links, a link pin connecting said links and block and springs pressing together said links and block.

13. In a car truck, the combination with a truck frame having pedestals, axle boxes therein, equalizing bars pivotallyconnected with the top and bottom of said axle boxes, and springs on the lower equalizing bars supporting the truck frame.

14. In a truck of the class described, an upper equalizing bar and axle boxes on which it rests, a lower equallzing bar and means for supporting the same from said axle boxes, and a spring seat supported by said equalizing bars.

15. In a truck of the class described, a truck frame, axle boxes, upper and lower equalizing bars for producing a parallel movement between said axle boxes, springs on which said frame rests, means for supporting said springs from said equalizing bars.

Signed at the city of Philadelphia, county of Philadelphia, and State of Pennsylvania, this 21st day of October, 1913.

WALTER S. ADAMS.

Witnesses:

HENRY O. Esnmo, H. F. MCKILLIP.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0." 

